A five-month investigation into heroin and meth sales culminated with a Tuesday morning arrest of a Yamhill County woman and two others.

Authorities arrested Sheryl Lynn Sublet, 61, on a single count of unlawful delivery of heroin, four counts of unlawful delivery of methamphetamine, one count of possession of meth and one count of being a felon in unlawful possession of a weapon.

Yamhill County Interagency Narcotics Team investigators had intercepted heroin and meth that Sublet allegedly was trying to ship across state lines. They were "packaged and disguised as health supplements," authorities said.

An Oregon State Police SWAT team served the warrant Tuesday morning at Sublet's address, 11475 NW Pike Road, "due to risk factors and fortifications at the property."

Authorities seized more than 8 pounds of meth and a half-pound of heroin over the course of their investigation, along with $50,000 worth of cashier checks that had paid for the drugs.

Sublet is being held at the Yamhill County Jail on $2,522,500 bail.

Authorities arrested two others at the Pike Road address: Nicole Vanvleet, 26, and Eric Lee Engle, 37. Authorities charged Engle with being a felon in possession of a firearm, while Vanvleet is being held at the Yamhill County Jail for violating probation. Engle was not listed in the Yamhill County Jail roster Wednesday morning.

Nicole Vanvleet(Photo: Yamhill County Jail)

"This was a quality investigation by (the narcotics team) and resulted in the arrest of an individual who was responsible for bringing enormous amounts of drugs into our community, including heroin which carries an extreme risk for overdose" said Yamhill County Sheriff Tim Svenson, who leads the team.

"We appreciate the assistance we received from outside agencies that allowed this case to come together."

Oregon State Police, the Portland Police Bureau, the Newberg Police Department and Yamhill County Sheriff's Office helped with the investigation.